C9300-NM-4M – 4x10G/mGig Copper Ports – Catalyst 9300 Module
Why Layer23-Switch
Stocked, Shipped and Supported by One Team
Ships in 1 Business Day
In-stock orders leave our Hong Kong or U.S. warehouse within 1 business day after payment, with tracking by email.
LSCare Warranty
3years on enterprise equipment
Free CCIE Support
Certified engineers help before and after you buy. Reply within 1 business day by email or live chat.
Verify Before You Pay
100%factory-sealed
Get label and serial photos before shipment, and check every serial number with Cisco.
C9300-NM-4M Description
The C9300-NM-4M is a Cisco Catalyst 9300 Series uplink network module for C9300 modular-uplink access switches that need copper Multigigabit uplinks. The module has four 10G/mGig copper ports, presented as TenGigabitEthernet1/1/1 through TenGigabitEthernet1/1/4, and has been supported since Cisco IOS XE Fuji 16.8.1a. The module fits only C9300 switches, not Catalyst 9300X switches, which use a separate network module family.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
C9300-NM-4M |
|
Product type |
Field-replaceable uplink network module |
|
Cisco ordering description |
Catalyst 9300 4 x 10G/mGig copper Network Module |
|
Module ports |
4 x Multigigabit Ethernet copper ports |
|
Port speed class |
10G/mGig copper |
|
Configurable interfaces |
TenGigabitEthernet1/1/1 through TenGigabitEthernet1/1/4 |
|
Supported platform family |
Cisco Catalyst 9300 C9300 network-module switches |
|
Platform boundary |
C9300X switches use C9300X-NM modules |
|
Minimum software release |
Cisco IOS XE Fuji 16.8.1a |
|
Spare PID |
C9300-NM-4M= |
Application Scenarios
Where the upstream connection is made over copper, the module gives a C9300 access switch four 10G/mGig ports in place of fiber slots.
A closet with an installed C9300 switch can add the module to the uplink bay and bring up TenGigabitEthernet1/1/1 through TenGigabitEthernet1/1/4 without replacing the chassis.
Product Comparison
|
Parameter |
C9300-NM-4M | |||
|---|---|---|---|---|
|
Number of ports |
4 |
4 |
8 |
2 |
|
Port speed |
10G/mGig |
1GE |
1GE or 10GE per port |
25GE, 10GE or 1GE |
|
Port type |
Copper |
SFP |
SFP+ |
SFP28 |
|
Interface class |
TenGigabitEthernet1/1/1 to 1/1/4 |
GigabitEthernet |
TenGigabitEthernet |
TwentyFiveGigabitEthernet |
|
Supported platform |
Catalyst 9300 (C9300 SKUs) |
Catalyst 9300 (C9300 SKUs) |
Catalyst 9300 (C9300 SKUs) |
Catalyst 9300 (C9300 SKUs) |
|
Minimum software release |
Cisco IOS XE Fuji 16.8.1a |
Cisco IOS XE Everest 16.5.1a |
Cisco IOS XE Everest 16.5.1a |
Cisco IOS XE Fuji 16.8.1a |
C9300-NM-4M is the copper option among the Catalyst 9300 uplink modules: four 10G/mGig copper ports that appear as TenGigabitEthernet1/1/1 through 1/1/4. Fiber uplinks need a different module: C9300-NM-4G offers four 1GE SFP slots, C9300-NM-8X eight 10G/1G SFP+ slots, and C9300-NM-2Y two 25G/10G/1G SFP28 slots. C9300-NM-4M and C9300-NM-2Y first shipped in Cisco IOS XE Fuji 16.8.1a, later than the Everest 16.5.1a of C9300-NM-4G and C9300-NM-8X. Like the rest of the C9300-NM family, C9300-NM-4M does not fit a Catalyst 9300X switch, which takes C9300X-NM modules.
Ordering Checklist
- Catalyst 9300 hosts: Order for Catalyst 9300 modular-uplink switches (C9300 SKUs), such as C9300-24P-E, C9300-48P-E, C9300-24T-E and C9300-48T-E. The module fits only the C9300 modular-uplink slot, which these switches provide.
- Unsupported hosts: Do not order for Catalyst 9300X switches, which take C9300X-NM modules, or the fixed-uplink C9300L and C9300LM models. Catalyst 9300 network modules do not work across generations, and fixed-uplink models have no module slot.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | C9300-NM-4M | Product type | Field-replaceable uplink network module |
| Cisco ordering description | Catalyst 9300 4 x 10G/mGig copper Network Module | Spare PID | C9300-NM-4M= |
| Supported platform family | Cisco Catalyst 9300 C9300 SKUs | Unsupported platform boundary | C9300X SKUs use C9300X-NM modules |
| Module ports | 4 x Multigigabit Ethernet copper ports | Port speed class | 10G/mGig copper |
| Interface class | TenGigabitEthernet | Configurable interfaces | TenGigabitEthernet1/1/1 through TenGigabitEthernet1/1/4 |
| Module role | Optional uplink network module for Catalyst 9300 switches | Install state requirement | Operate the switch with a network module or blank module installed |
| Installation handling | Remove cables before installing or removing the module | Minimum software release | Cisco IOS XE Fuji 16.8.1a |
Quality Certifications
Customer Reviews
Questions & Answers
-
Which Catalyst 9300 switches take C9300-NM-4M?
-
What software release does C9300-NM-4M need?
-
Is C9300-NM-4M required for a Catalyst 9300 switch to run?
-
What must be done with cables before installing or removing C9300-NM-4M?
-
Which interface class does C9300-NM-4M use in the Cisco IOS XE configuration?
-
Which PID do I order as a spare for C9300-NM-4M?
Warranty
Layer23-Switch.com offers genuine, high-quality ICT products at competitive wholesale prices—ensuring exceptional value without compromising quality.
All items are brand new, original, and factory-sealed.
Upon request, each unit can be fully tested and verified by a Cisco CCIE-certified engineer to ensure perfect working condition before shipment.
Our Cisco CCIE-certified experts provide free professional support via phone, email, online chat, or remote login—helping you deploy and troubleshoot with confidence.
If you are not satisfied with your purchase, you may request an exchange or full refund. Our customer service team will guide you through the return process quickly and smoothly. Visit Return Policy page for more information.
We support multiple secure payment and logistics options, backed by industry-leading verification:












Visit How to Pay page for more information
Extended, Worry-Free Warranty Coverage Factory New Sealed Enterprise Hardware:
· 3 Years Factory New Sealed
Visit Warranty Policy page for more information
Verify, plan, and comparewith confidence
Use practical tools to check device details, review lifecyclemilestones, and compare hardware before you buy.


Layer23 has become a key part of our supply chain.
Layer23 takes the friction out of B2B purchasing.
Our field engineer deployed this remotely with minimal documentation. It was that straightforward.
Super fast delivery! Thanks for helping out.
Four SFP+ links came up immediately—shipping was seamless.